Intel Pentium Gold G6600 's Advantages
Integrated graphics card
Higher base frequency (4.2GHz vs 2.9GHz)
Lower TDP (58W vs 280W)
AMD Ryzen Threadripper 3990X 's Advantages
Higher specification of memory (DDR4-3200 vs DDR4-2666)
Larger memory bandwidth (95.37GB/s vs 41.6GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (128MB vs 4MB)